Brittle bones be gone! As people age, their bones begin to lose calcium and become fragile, a condition called osteoporosis. The majority of people in the world older than 70 are affected by this condition. But brittle bones and a stooped stature shouldn’t be considered a natural part of getting older. Osteoporosis prevention is possible with the right plan. Calcium and vitamin D supplements are a good start, but they won’t make a difference if you aren’t also engaging in activities that exert weight on the bones. Try moderate weight-bearing exercises, such as walking for 30 minutes three times a week, to achieve maximum bone density and strength.